Shell-fuse.



K. H. MOREN..

SHFLL FUSE.

APPLICATION FILED JULY 18. 1916.

Patented Feb. 20, 1917.

'Um f D "STATES Parr i onirica.'A

mi. Huso uom, or Boreas, :wanna SHELL-rusa.

1,216,834. hummm a! Lette" Intente, Patented Feb. 20,1917.

. appunti@ ma my 1s, ma sex-m n. 16am. y To all wkomitraayconcemfj fuse body 1." The inner ortions of theseA a'subject of the King ofSweden, residing at Be 't known that I, KARLI 'HUGO MORN,

Bofors, Sweden, have invented new and usefull Improvements `in ShelllFuses, of which the following is a specification.

My invention has for its object a means for keeping the detonator and the detonating charge in shell fuses separated from each other until the projectile has left the muzzle of the gun.v According 'to the invention aconical spring actuated cover on the detonating charge is kept in safe position by 'means'of one or more balls, which la are situated in openings in an annular member and rest against the surrounding wall of the fuse body. When the annular member at the iiring is released from its safe or locked position the compressed spring forces the vsaid member with the balls and the cover of the detonating charge forward untilthe balls pass a recess in the wall of the fuse body, whereby they are pressed outward by the conical cover, whilel the detonating charge still is forced forward by the spring. I

,In the accompanying drawing a shell fuse arranged according to this invention is illustrated in a longitudinal section.

1 is thefuse body, the front end of which contains the usual with Apowder chann ,12 is the detonator, which is introduced in a corresponding recess 3 of the detonatin charge-4,- when the projectile shall be use but during'transport or storing is kept separated from the said charge, which thus cannot be unintentionally ignited. ,Accordingto my invention the detonator and.l the detonating charge are kept separated from one another by means of an annular safety. member 5, surrounding the detonator, in which member enters a 'cover 7 for the detonating charge 4. This cover is acted upon by a spring 6 forcing it forward and is held by means of one or more balls 9, placed in openings 8 in the annular member 5 and resting against the wall of the surrounding its operation, what Ieclaim is:

rcussion mechanism" balls project' in the patho the cover 7 and prevent it as well as the detonating charge from passing forward over the detonator, when the member 5 is held in its safe position, for instance by means .of a piston 10 and a powder pill 11 which is burnt at the firing. When the member 5 is released from the safe position, it Willtogether with the other parts acted upon by the spring 6 (the balls 9, lthe lcover 7 and the detonating charge 4) be forced forward until'the balls pass a recess'13 in the wall of the fuse body, 1n which they are forced by means of the moving conical cover.

the cover the detonating charge inde ndent from the member 5 can be pushedeforward over the detonator 2 by the ring 6.

Havin now particularly described the nature o my invention and the manner o f In a fuse for shells, a hollow body a detonating charge container slidably disposed within said body and provided with a cover having a beveled forward edge, a safety member having a longitudinal passage large enough to receive said container, disposed forwardly of said container, a spring tending to force said container into said passage, balls ldisposed between said member and the beveled edge of the container and bearing against-the inner surface of the fuse body to 4prevent movement of the container, the said fuse body bein provided with a recess to' receive said bal s on forward motion of the 'safety member, means for retaining said safet member in safe position, and means for re easing said safety member as the shell is fired.

In .testimony whereof I have signed my name to this specification in the prence of two subscribing witnesses.

KARL HUGO MORN. Witnees:v

R. ENZBERG, N. PnrrnnsoN.

When the balls in this mannerare brought out of the way of 

